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Andrew Templeton andrew-templeton

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andrew-templeton / aws-readonly
Last active February 4, 2026 20:08
AWS SSO to read-only session for agent use
#!/bin/bash
# aws-readonly
# Creates a 12-hour read-only AWS session for agent use
# Auto-creates the ReadOnlyAccess role via CloudFormation if it doesn't exist
#
# Usage: aws-readonly <sso-profile-name> [output-profile-name]
#
# Example:
# aws-readonly csc-prod-admin # Creates csc-prod-admin-readonly
# aws-readonly csc-prod-admin agent-ro # Creates agent-ro
@andrew-templeton
andrew-templeton / CHICKENLOOP.chicken
Created May 16, 2018 02:41
CHICKENLOOP.chicken
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chicken
@andrew-templeton
andrew-templeton / rule.json
Last active June 24, 2016 18:57
Generic lambda cron CloudFormation substack
{
"Parameters": {
"TARGET_LAMBDA_ARN": {
"Type": "String"
},
"EXEC_SCHEDULE": {
"Type": "String"
},
"RULE_NAME": {
"Type": "String"
@andrew-templeton
andrew-templeton / index.js
Last active June 6, 2016 18:52
Embedded Lambda custom resource for getting an EB Environment's ELB's CanonicalHostedZoneId
var AWS = require('aws-sdk');
var response = require('cfn-response');
exports.handler = function(event, context) {
console.log('REQUEST RECEIVED: %j', event);
if (event.RequestType == 'Delete') {
response.send(event, context, response.SUCCESS);
return;
@andrew-templeton
andrew-templeton / index.js
Created April 1, 2016 03:12
lambda function to test the IP of your lambda as seen by ifconfig.co
var http = require('http');
exports.handler = function (event, context) {
http.get('http://ifconfig.co', function (res) {
var buff = [];
console.log('Got response: %s', res.statusCode);
res.on('data', function (chunk) {
buff.push(chunk);
});
res.on('end', function () {
console.log('Found: %s', buff.join(''));
@andrew-templeton
andrew-templeton / vpc.json
Created April 1, 2016 02:20
CloudFormation template packaging a serverless VPC for fixed/static IPs on Lambdas
{
"Description": "Host VPC for Lambda Static IPs",
"Parameters": {
"VPCClassBOctet": {
"Type": "Number",
"Description": "The Class B block to use for the VPC (0-255).",
"MaxValue": 255,
"MinValue": 0,
"Default": 0
},
@andrew-templeton
andrew-templeton / aws-cloudwatch-events-rule-scheduleexpression.js
Created February 28, 2016 07:59
Full Regex for ScheduleExpression property of AWS CloudWatch Events Rule
"^(rate\\(((1 (hour|minute|day))|(\\d+ (hours|minutes|days)))\\))|(cron\\(\\s*($|#|\\w+\\s*=|(\\?|\\*|(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?(?:,(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?)*)\\s+(\\?|\\*|(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?(?:,(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?)*)\\s+(\\?|\\*|(?:[01]?\\d|2[0-3])(?:(?:-|\/|\\,)(?:[01]?\\d|2[0-3]))?(?:,(?:[01]?\\d|2[0-3])(?:(?:-|\/|\\,)(?:[01]?\\d|2[0-3]))?)*)\\s+(\\?|\\*|(?:0?[1-9]|[12]\\d|3[01])(?:(?:-|\/|\\,)(?:0?[1-9]|[12]\\d|3[01]))?(?:,(?:0?[1-9]|[12]\\d|3[01])(?:(?:-|\/|\\,)(?:0?[1-9]|[12]\\d|3[01]))?)*)\\s+(\\?|\\*|(?:[1-9]|1[012])(?:(?:-|\/|\\,)(?:[1-9]|1[012]))?(?:L|W)?(?:,(?:[1-9]|1[012])(?:(?:-|\/|\\,)(?:[1-9]|1[012]))?(?:L|W)?)*|\\?|\\*|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:-)(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?(?:,(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:-)(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?)*)\\s+(\\?|\\*|(?:[0-6])(?:(?:-|\/|\\,|#)(?:[0-6]))?(?:L)?(?:,(?:[0-
@andrew-templeton
andrew-templeton / cron-regex.js
Created February 28, 2016 06:05
Regex to validate cron expressions
"^\\s*($|#|\\w+\\s*=|(\\?|\\*|(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?(?:,(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?)*)\\s+(\\?|\\*|(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?(?:,(?:[0-5]?\\d)(?:(?:-|\/|\\,)(?:[0-5]?\\d))?)*)\\s+(\\?|\\*|(?:[01]?\\d|2[0-3])(?:(?:-|\/|\\,)(?:[01]?\\d|2[0-3]))?(?:,(?:[01]?\\d|2[0-3])(?:(?:-|\/|\\,)(?:[01]?\\d|2[0-3]))?)*)\\s+(\\?|\\*|(?:0?[1-9]|[12]\\d|3[01])(?:(?:-|\/|\\,)(?:0?[1-9]|[12]\\d|3[01]))?(?:,(?:0?[1-9]|[12]\\d|3[01])(?:(?:-|\/|\\,)(?:0?[1-9]|[12]\\d|3[01]))?)*)\\s+(\\?|\\*|(?:[1-9]|1[012])(?:(?:-|\/|\\,)(?:[1-9]|1[012]))?(?:L|W)?(?:,(?:[1-9]|1[012])(?:(?:-|\/|\\,)(?:[1-9]|1[012]))?(?:L|W)?)*|\\?|\\*|(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:-)(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?(?:,(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC)(?:(?:-)(?:JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC))?)*)\\s+(\\?|\\*|(?:[0-6])(?:(?:-|\/|\\,|#)(?:[0-6]))?(?:L)?(?:,(?:[0-6])(?:(?:-|\/|\\,|#)(?:[0-6]))?(?:L)?)*|\\?|\\*|(?:MON|TUE|WED|THU|FRI|S
@andrew-templeton
andrew-templeton / example-ddb-scaler.json
Created November 21, 2015 21:44
Proposed CloudFormation custom resource interface for DynamoDB AutoScaler Resource
"MyDynamoAutoScaler": {
"Type": "Custom::DynamoDBAutoScaling",
"Properties": {
"TableName": {"Ref": "MyDynamoTable"},
"CheckInterval": 300,
"ScaleReadsUpAbove": 90,
"IncreaseReadsBy": 50,
"ScaleReadsDownBelow": 30,
@andrew-templeton
andrew-templeton / Functional Stuff
Created May 20, 2015 21:30
function add(x, y) {
return x + y;
}
function toThe(pow) {
return function(base) {
return Math.pow(base, pow);
};
}